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Finding the Fourth Proportional to 110,753.78, 166,133.01 and 39,681.05

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Solution

The fourth proportional to 110,753.78, 166,133.01 and 39,681.05 is: 59,522.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,753.78 : 166,133.01 = 39,681.05 : x
  2. Step 2: Convert to fraction form
    110,753.78/166,133.01 = 39,681.05/x
  3. Step 3: Cross multiply
    110,753.78x = 166,133.01 × 39,681.05
  4. Step 4: Simplify right side
    110,753.78x = 6,592,332,276.46
  5. Step 5: Solve for x
    x = 6,592,332,276.46/110,753.78
  6. Step 6: Final answer
    x = 59,522.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.